[Dog Gone]

It was something. I rather doubt it was hyenas, at least completely. Man had sufficient weapons to defeat anything but the largest and most determined packs.

I think it was probably something else, maybe something we can't ever discover through bone fragments. Maybe a religious taboo, or maybe it was simply tales from travelers saying that Alaska was no paradise. But it was something.

[BushMeister]

I saw a Discovery Channel special that theorized that an enormous Grizzly-type bear is the culprit that munched on humans who crossed the land brodge into N. America. The remains of such a creature have been found.

[blam]

"I think it was probably something else, maybe something we can't ever discover through bone fragments. Maybe a religious taboo, or maybe it was simply tales from travelers saying that Alaska was no paradise. But it was something."

I like Turner and I like him a lot. However, you're letting him control the argument by agreeing with him on the 14k year date, which I don't.
How did the 80k year old Jomon and the less old Ainu get to Asia? (They came across Siberia, that's how.)

[dzzrtrock]

Well it sure wasn't el presidente geo. BOOSH and his border patrol keeping them out...